Remove TapHandler for CodeMaximizeComponent

This specific TapHandler proves to be a bit trigger-happy; when trying to copy
text, select or de-select text, or generally do more than stare at it without
touching your mouse, it is too easy to minimize the fullscreen component. This
fixes the issue entirely; when tapping on the message in the timeline, it
still shows a maximized message. This only applies to the maximized message.

src/qml/CodeMaximizeComponent.qml

@@ -139,10 +139,6 @@ Components.AbstractMaximizeComponent {
                     leftMargin: lineNumberColumn.width + lineNumberColumn.anchors.leftMargin + Kirigami.Units.smallSpacing
                 }
             }
-            TapHandler {
-                acceptedButtons: Qt.LeftButton
-                onTapped: root.close()
-            }
 
             background: null
         }